plumiRadioactive decay: CAIE A‑Level Physics questions
Every CAIE A-Level Physics exam question on 23.2 Radioactive decay, June 2024 and the specimen papers, with its mark scheme and examiner’s report.
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Q9(a)
The whole paper ↗![June 2024 Paper 4, question 9(a): Define half-life of a radioactive isotope. [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/970241-jun24-09-a-qp.webp)
Q9(b)(i)
The whole paper ↗![June 2024 Paper 4, question 9(b)(i): State the name of the quantity represented by the magnitude of the gradient of line X in Fig. 9.1. [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/970241-jun24-09-bi-qp.webp)
Q9(b)(ii)
The whole paper ↗
Q9(c)
The whole paper ↗![June 2024 Paper 4, question 9(c): The mass of radioactive isotope X in the sample in (b) is 7.3 × 10–4 kg at time t = 0. Determine the nucleon number of isotope X. nucleon number = [3] [Total: 8](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/970241-jun24-09-c-qp.webp)
All 4 questions on Radioactive decay, as a list
- June 2024, Paper 4, Q9(a) (1 mark): Define half-life of a radioactive isotope. [1]
- June 2024, Paper 4, Q9(b)(i) (1 mark): State the name of the quantity represented by the magnitude of the gradient of line X in Fig. 9.1. [1]
- June 2024, Paper 4, Q9(b)(ii) (3 marks): State three conclusions about X or Y that may be drawn from Fig. 9.1. The conclusions may be qualitative or quantitative. Use the space below for any working th
- June 2024, Paper 4, Q9(c) (3 marks): The mass of radioactive isotope X in the sample in (b) is 7.3 × 10–4 kg at time t = 0. Determine the nucleon number of isotope X. nucleon number = [3] [Total: 8
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